public class Main {
    public static void main(String[] args) throws Exception {
        // System.out.println("Hello, World!");
        class Person{
            private String name;
            private int age;
            
            public  Person(String name,int age){
                 this.name = name;
                 this.age = age;


            }
            public Person(String name){
                this.name =name;

            }
            public Person(){
                this("xiaokong");

            }
            public String getname(){
                return name;
            }
            public int getage(){
                return age;
            }

            

        }
        // Person p = new Person("xiaokong",18);
            
            Person p = new Person();
            System.out.println(p.getname());
            System.out.println(p.getage());
     
    }
}
